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O. W. HERGENROEDER,

MUSIC LEAF TURNER. No. 265,602; PatentedOct. 10, 1882..

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MUSIC LEAF TURNER.

No. 265,602. Patented Oct. 10, 1882.

WITNESSES INVENTOR d1. W 6.7% 26.

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UNITED STATES ATENT OFFICE.

CHRISTIAN W. HERGENROEDEB, OF BALTIMORE, MARYLAND.

MUSIC-LEAF TURNER.

SPECIFICATION forming part of Letters Patent No. 265,602, dated October10, 1882.

Application filed January 25, 1882. (No model.)

To all whom it may concern Be it known that I, CHRISTIAN WILLIAMHnnennnonnnn, of the city of Baltimore, in the State of Maryland, haveinvented a new and useful Improvement in MusicLeaf Turners, of which thefollowing is a full, clear, and exact description, reference being badto the annexed drawings, forming part of this specification.

This invention relates to devices for turning the leaves of sheet-musicand it consists of a stand for holding the sheets or book and a train ofgearing connected to apedal, by which suitable mechanism for turning theleaves shall be operated, as hereinafter described.

In the drawings, Figure l is a plan view of the device, partly brokenaway. Fig. 2 is a bottom view, partly broken away. Fig. 3 is an endview, and Figs. 4 and 5 are detail views, in section. v

The stand or holder A, upon which the sheetmusic is placed in the mannershown in Fig. 1, is provided with a transverse strip, a, atthe center,which is hinged to the stand and held in contact therewith by springs a,whereby the sheets shall be firmly held at one edge.

The right-hand end of the stand is provided with a hinged leaf, 1),which rests upon one or more spring-supports, 1), consisting of two thinstrips of wood or metal connected together at one end in a flexiblemanner and held apart at the other by a suitable spring, as shown in Fl4, so as to have the form of a wedge.

The supports'b are adapted to be raised or lowered by one or morewedge-shaped blocks, 71 which are connected to a roller, 0, in the underside of the stand by means of flexible strips 0, which are passed aroundthe roller, crossed at the top, and secured to opposite ends of theblocks in such manner that as the roller is turned by means of the knobc on one end thereof the blocks will be moved to and from underneath thesupports, and thus cause the leaf 1) to rise or fall. Upon the leaf 1)rests the sheet-music, with the free edges thereof between said leaf anda turning device, consisting of a frame, d, having a rib, d, at eachend, adapted to slide in a suitable mortise in the stand against thetension of a spring arranged in the mortise.

In the center of the sliding frame is hinged a strip, (Z having a stiffbrush, (1, secured to its under surface, which brush is held in contactwith the sheet of music by a button, (1 in contact with the uppersurface of the said strip. At the ends of the hinged strip areprojections c, which pass under deflecting-guides c, attached to thestand A in such manner that as the frame d moves against the tension ofits springs the strip will be pressed down and the brush held in closercontact with the upper sheet of music, to cause thelatter to slip overthe sheet underlying it in the act of being turned.

As soon as the projections 0 pass beyond the guides c the action of thespring-supports b will cause the strip and brush to fly up and releasethe sheet, and as the sliding frame returns to its normal position theprojections will pass back above the guides to hold the brush out ofcontact with the remaining leaves of the music until it is in positionto turn another leaf. This part of the device, which performs only thefirst step in the act of turning a leaf, is operated by thefollowing-described mechanism:

At the right-hand end of the stand A are pivoted two levers, f, havingfriction-rollers 1 attached to their inner or shorter ends, whichrollers are adapted to move along a curved track formed on the adjacentedge of the sliding frame cl in such manner that the levers will pressthe said frame out of its normal position to operate the brush (1 in themanner above described.

The outer or longer ends of the lovers are provided withretaining-springs f against which the lovers are operated, and the saidends are connected by means of cords g to rollers g upon the upper endsof shafts while the said rollers are operated to wind the cords g anddraw the levers against the tension of their retaining-springs by meansof rollers h, secured to the lower ends of shafts 9 as shown in Fig. 3,and connected to the pulley h by means of bands 7L2, attached to theirperipheries and wound thereon, and the cords it which are connected tothe bands 702 and the periphery of the said pulley. A cord,t, which isto be connected to a pedal, is so attached to the pulley ii that when itis drawn by pressure upon the pedal it will cause a sufficientoscillation of the pulley to unwind the bands 7L2, and thus communicatemotion to the shafts 9 by which the cords g are wound upon their rollersand the desired movement given to the levers to operate the slidingframe and its brush.

Upon each end of the shaft 2', which carries the pulley h, is secured apulley or roller, '5 as shown in Fig. 2, to the periphery of which isattached a cord, j, connected to a lever, j, pivoted to the bottom ofthe stand.

The two levers j are arranged with their longer ends outward toward theupper and lower edges of the stand, respectively, and are provided withcords j attached to said ends, and fastened to the smaller upper part ofrollers k, journaled in openings in the stand.

0n the larger part of rollers 70 are fastened cords Z which pass to theupper surface of the stand. At the upper and lower edges of the stand,on the upper side, are pivoted levers k so arranged that they shall beallowed to oscillate in a plane at right angles to the surface of thestand. These levers are made short, and are pivoted near one end tosuitable supports, while the opposite end of each is provided with aretaining-spring, 70 as shown in Fig. 5, to hold the leverin its normalposition.

To the free end of each lever k is hinged an arm, 1, adapted to move ina plane at right angles to that of the lever; and this arm is so bentthat the cord P, which is attached to its upper end, after .being passedalong a groove in the lever k shall, when drawn by the mechanism abovedescribed, cause the said arm to move in a plane parallel to the surfaceof the stand until it is drawn to a position at right angles to thelever 73, where its movement will be stopped by contact with the lever.In passing to the last-named position the arm Z will have entered thespace between two leaves of the music caused by the action of the brush(i which tends to make the upper leaf rise or arch above the leafunderlying it,and thus the second step in the act of turning a leaf isaccomplished. By increasing the pressure on the pedal the cord P willcause the lever 70 to complete half a revolution about its pivot,carrying the arm 1 over with it, and thus complete the act of turning aleaf. When the lever k is allowed to return to its normal position bythe action of its retaining-spring, the arm I, which is to be connectedto the said spring, will likewise be drawn to its normal position in arecess provided therefor.

The shaft i on the under surface of the stand is provided with tworetaining-springs, 122, formed of spiral springs and bands, which aresecured to the surface of the stand and connected to the shaft, so as tobe wound thereon when the pedal is operated to turn the main pulley h.The action of these springs will cause the pulley and its connections toreturn to their normal position after they have been moved to turn aleaf of the sheet-music.

It will thus be seen that there are three separate steps or movements inthe act of turning a leaf, and that all are accomplished by the samemovement of the pedal, only increased pressure upon thepedalbeingrequired to complete the successive steps.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-- 1. A music-leaf turner consisting of astand, a sliding brush adapted to arch a leaf, two hinged arms forpassing under the arched leaf at the upper and lower edges thereof, andsuitable gearing for operating said parts, substantially as shown anddescribed.

2. A music-leaf turner consisting of a stand or holder having a devicefor clamping the sheets at one edge, a sliding brush arranged above thefree edges of the sheets, two arms arranged at the upper and lower edgesof the stand, an oscillating lever connected to each arm, havingretaining-sprin gs and cords by which they shall be operated, and atrain of levers, pulleys, and cords connecting said parts, substantiallyas shown and described.

3. A music-leaf turner consisting of a stand having a hinged leaf at oneend, forming a part of the holder, a suitable device for raising orlowering said leaf, a sliding frame arranged above said leaf andcarrying a brush, and a deflecting-guide for pressing the brush downupon the music-sheet, in combination with hinged arms and oscillatinglevers carrying said arms, arranged at the upper and lower edges of thestand, near the center thereof, and a train of gearing connecting saidparts and operated by a pedal, substantially as shown and described.

4. In a music-leaf turner, the combination of a stand having a hingedleaf, a wedgeshaped springing device supporting the leaf, a wedge-shapedblock or blocks connected to a roller by crossed flexible strips orhands, so as to be moved to and from under the said supports, and asliding frame arranged above the said leaf, carrying a stiff brush andhaving retainingsprings,and means for deflecting the brush, andoscillating levers having friction -rollers which are adapted to movealong curved tracks or cams on the adjacent edge of the slidingframe,and which levers are provided with retaining-springs and connected bycords to a train of pulleys, substantially as shown and described.

5. In a music-leaf turner, the combination, with the sliding frame andthe levers by which it is operated, of rollers connected to the saidlevers by cords, and which are adapted to wind the cords, a pulleyarranged underneath the stand and connected to shafts of said rollers bycords or strips which are wound upon them, and a cord connecting thepulley to a pedal or other device for operating the pulley,substantially as shown and described.

6. In a music-leaf turner, the combination, with the stand and thepulley secured thereto, and retainin g-sprin gs connected to the shaftdescribed.

of said pulley, of supplemental pulleys secured CHRISTIAN W.IIERG-ENROEDER.

5 to said shaft, two levers pivoted to the under lVitnesses:

surface of the stand and connected by cords E. E. WENGK, both to thesaid levers and to the hinged arms, FR. HORN.

and their carrying-levers on the upper surface of the stand,substantially as shown and

